bueno



March 29, .1927.

E. BUEN@ ELECTRICALLY coNTRoLLED REPRODUGING scRIBER Filed March '5, 1922 2 Sheets-Sheet 1 1,622,366 March 29, 1927. E' BUENO ELECTRICALLY GONTROLLED REPRODUCING SCRIBER Eiled March 5,".L922 2 Sheets-Sheet 2 4 9 I 'lgm] I J I Patented Mar. 29, 1927.

EMILE BUENO, OF HERECOURT, FRANCE.

ELECTRICALLY-CONTBGLLED BEEROIDUCING SCRIBER.

Application filed March 3, 1922, Serial No. 540,809, and in France March 11, 1921.

This invention relates to a apparatus to reproduce on paper and in their colors images autochrome, omnicolor and such like plates.

The object oi' my invention is to provide an apparatus that can be constructed ot any size and will allow to be reproduced on paper, in their colors, in any number, and, photographically speaking in an unalterable manner, images obtained on autochrome, omnicolor. dioptichrome or such like plates.

In the drawings appendedhereto:

Fig. I is a plan view ot the apparatus.

Fig. 2 is an elevation ot the same.

Fig. 3 is a detail in elevation illustratinpg` the reproducer tracer.

Fig. 4i is a diagrammatic view ot the electrical connections when arranged in parallel.

Fig. 5 is a similar view ot the electrical connections when arranged in series.

Fig. 6 is a sectional view oi the negative holder.

The improved apparatus as shown in the preferred form in the accompanying draw ings. includes a base E. from which rises a standard. G havin, Y an upper portion overlying and in spaced parallel relation. to the base E. This latter portion of the upright supports a cross piece B substantially centrally of the base and arms A. tour in number. radiate from this cross piece B.

Slidably mounted on each armn is a carriapre H, and these carriages have projectine` portions interiorly threaded to receive screw rods I. The inner end ot each of the screw rods is rotatably mounted in a support hi rising from the adjacent arm A. the screw rod being! extended inwardlv bevond the support in the form ot a shaft which is terminally provided with a pinion I. As the screw rods I are mounted lfor rotation but held against endwise movement. operations of the pinions will cause the carriaaes to he moved lengthwise the arms A. Pubber discs T and V are arranged on the screw rods I at the respective limits ot travel ot' the carriage. One of the carriases supports a tracer K carrying a very fine needle l supported and manually adjustable throuo'h conventional means 2 in a sprinfzblade The blade is adjustable relative to the support n'tor the tracer as a whole throufxh screw 4. and a springstrip 5 overlies the blade 3 and is adjustable relative thereto bv a set screw 6. The spring strip 5 and blade o carry carbon contact points 7, these points being of course adjustable through the set screw 6. By means of the set screw 4, the amplitude of vibrations of the needle 1 may be controlled to permit sott or contrasted proofs to be obtained. Upon contact With the reliefs the tracer vibrates making the microphonic carbon vibrate, which, being in the circuit of the style reproducers, make the potential of these circuits vary proportionately to the relief. The remaining carriages H are each provided with reproducers L (F 3) in which the needle 8 is adjustably mounted through set screw 9 carried by an armature 10 of electromagnets 11.

A lcircular plate C is rotatably supported on'the base through the medium of a post D tapered at its lower end ior rotative support in a socket in the base. the upper end of the support passing through the cross piece B. said post above the cross piece being in the form of a worm J which simultaneously enrages all 'of the pinions I and operates said ninions in the rotation of the plate C. Post D and therefore the plate C is driven by means of a motor F. which may be of spring type through searing 12. this motor being mounted for sliding' movement on the base E bv means ot' lguides 13. and held in adjusted position in the base through the medium of an adiustinpf screw X.

On the upper portion ot the standard G are arranged two microscopes. one ot' which as N is stationary. and the other ot which as O is slidablv adjustable by means of set screu7 14:. These microscopes immediately overlie the plate C and are adapted for focusing' in the usual manner. the lower ends ot each microscope havinothe crossed. centerina lines. as clearlv shown in Fie. 1.

The plate C is provided with a negative holder. comprisingf a recess into which is fitted a frame l5 capable oi limited adjustment radiallv ot the disc bv adiustinfr screws 16. Within the trame lli is fitted a second trame 17 adapted for adiustment at right anales to the adjustment ot frame l5 hv screw 18. and within the trame 17 is arranged a negative holding trame i9. the meetinfr edges oi trames i7 and 19 beine? on curved lines 20 to permit a limited rotative adjustment oi the negative trame through the medium oi screw 2i. Thus. the negrative when in position may be adjusted in practically all directions to a limited extent.

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ledges 22 are arranged to hold the negative within the frame 19 and also frame 19 in its adjusted position relative to the fran e 17. lVooden or brass rectangular plates of the inner size of the negative holder, are set into the plate C to provide with the negative holder diametrically opposed pairs of perating surfaces.

A socket or other connector l provides for the application of current, the circuit being led throi'igh the respective trac s and reproducers in the manner indicated in the drawings. A switch F is provided in the circuit and automatically cuts off the current when the negative has passed beyond the reach of the tracer.

Supposing a 4 X 6 centimeters autochrome plate is to be reproduced in its colors, I first, in the middle of its longer edges and on the emulsiiied' side, bare the glass by scratching off the gelatine on a -i- X 4 millimeters area.

I stick on this area a gelatine .film of same size crossed in its middle by two reference lines similar to and of same thickness as those of the microscopes.

Said autochrome having thus been prepared I print, by means of panchroinatic plates, three monochrome negatives accord-- ing to known principles, it will be apparent therefore that the first one. obtained under an orange screen. will show blue in its transparent parts. the second. under a green screen.y will show red. and the third, under a violet screen` will show yellow.

I then take three glasses of suitable thickness but perfectly plane, coated with a thin layery of 3% potassium bichromated gelatine, I expose during av suitable time each glass to each one ofthe monochromes: I then treat them together' with hot water as in pigment processes. and so obtain three new monoch-rome negatives in relieve. Such relievos will correspond respectivelyT to blue, red and yellow.

The reference marks of those three monochromes would be rather difficult to see. In order to make them very plainly visible, I dip edgewise the two longer sides of each glass into a basin covered four millimeters deep with the following solution:

Grams. Boiling distilled water 120 Iodide of potassium 1.6 Bromide of potassium 9 Before using it I wait until the solution has completely cooled down.

I then dip the edges again, exactly before, into Grams. Distilled water Nitrate of silver 50 I end by a third operation, always proceeding in the same manner, but usine` common revealer. The reference lines then appear in black visible through the microscope. After drying the glass plates are ready for use.

In using them, I first put a plate-glass. say the blue one, in the negative-holder. I clinch it with wedges and then make its reference marks register with those of the microscopes by operating the intermediate devices of the negative holder and the micrometric screw of mobile microscope O.

I then secure three sheets of paper. well stretched by means of thumb tacks` on rectangular plates R which they out pass slightly. These three copy-sheets will receve the image in colors.

I next cover the plates with three other sheets of blue paper, so called tracing paper. leaving a blue print under pressure. These three sheets are also to be well stretchedv and secured with thumb-tacks.

I then operate the large inicrometric screw of explorer tracer K so that the tracer will just skim the relief surface of' the glass.

I operate likewise the micrometric screws of reproducer tracers L, so that when the electric current is switched on, the needles of said tracers will suitably press on the tracing paper.

I put the plug into the jack, such plug being connected with a. small pile or battery of suitable power.

I next wind up the clockworl which imparts its movement by means of one ot the outer pinions of the boX, driving the gear of the mobile plate axle. Mobile plate C begins to rotate'.v bringing the relief monochrome negative under explorer' tracer K. and the rectangular plates R, tog-ether with the sheets that cover them. under reproducer tracers L. At this moment the carbon of the switch comes into contact with the mass. At each relievo corresponding tothe blues, violets and greens of the autochrome, the monochrome lifts the needle of explorer tracer K in the proportion in which blue enters into the composition of those colors. thus acting on the microphone carbon which modifies the current in ratio to the intensities of the relievo. The current being thus modified, reproducer tracers L will' faithfully reproduce in blue the current modifications, giving a blue image.

@nce the blue image obtained. I substitute for the blue monochrome relieve the red one and make the reference marks register with those of the microscopes. but. this time. without interfering with th-e latter. only the intermediate devices having to be operated. Then the registering is achieved I substitute to the blue tracingr paper a red one without touching the copy sheet.

I displace the clockwork bv operatiiigtl'ie boK-outcenteriug knurled stud X. I VindV up the clock and the operation begins again. The plate then revolves in the opposite direction. A red proof is thus grafted on the blue one.

I finish by repeating the operation with the yelloii7 monochrome relieve and with yellow tracing paper. Proofs so obtained will reproduce all the colors of the autochrome.

Instead of using tracing paper, I may sprinkle with very finely powderized pastel or crayon the surface of the copy-sheets. Obviously the color of the crayon must correspond to the color of the tracing paper replaced thereby. Care should be taken to remove delicately the crayon with a very fine badger-hair brush. y

If from three trichrome selected negatives issued from one and the same autochrome, three corresponding monochromes are obtained in relievo by the bichromated gelatine pigment process and after such negatives have been perfectly registered respecting one another, the blue one is selected and placed in the apparatus and its reference marks having' been registered with those of the microscopes, the apparatus is set in motion, the explorer tracer will. on contact with the relieves, cause to be vibrated a mierophonic carbon varying the electric current which energizes the electro-magnet with which the other tracers, so-called reproducers, are provided, and said reproducer tracers will trace in blue crayon the current variations, making thereby a blue part image.

To substitute for the blue relievo monochrome the red one, the latter has to be put exactly in the same place and to do so the microscopes must not lloe interfered with while the reference marks have to be made to register. Leaving the copy-sheets as they are red crayon is sprinkled on instead of blue crayon. The apparatus is then set going again and hereby a red image grafted on the blue one. By this second operation a blue, red, violet image is obtained. The operation is repeated for yellow with yellow crayon, and all the colors are thus obtained.

Instead of crayon a sheet of correspondingly colored tracing paper may be used.

I claim:

1. An apparatus to reproduce on paper and in their colors images from autochrome, omnicolor, dioptichrome and like plates. comprising a circular plate, said plate being formed with opposed pairs of defined spaces to receive the negative and the respective monochrome negatives` and a plurality of tracers movable radially of said plate, and means whereby the position of the monochrome negatives in relievo may be successively set in registry with the position of the initial monochrome negative in relievo.

Q. An apparatus to reproduce on paper and in their colors images from autochrome, omnicolor, dioptichrome and like plates, comprising a circular plate, said plate being formed with opposed pairs of defined spaces to receive the negative and the respective monochrome negatives, and a plurality of tracers movable radially of said plate, and microscopes whereby the position of the monocrome negatives in relievo may be successively set in registry with the position of the initial monochrome negative in relievo.

3. An apparatus of the class described, comprising a circular plate, means for rotating said plate, said plate being formed with opposed pairs of defined spaces to receive the negative and the respective monochrome negatives, a tracer movable radially of the plate, and reproducers movable radially of the plate in exact correspondance with the movement of the tracer.

4. An apparatus of the class described, comprising a plate mounted for rotation about an axis, a tracer supported above the plate and movable radially thereof, reproducers supported above the plate, means for electrically controlling said reproducers by the tracer, means for moving said reproducers radially of the plate in exact correspondence with the movement of the tracer, and means for rotating the platel` said plate being formed with a negative holder capable of limited adjustment in all directions with which the tracer is to cooperate, said plate being further formed with particular surfaces with which the respective reproducers cooperate during movement of the tracer with relation to the negative.

5. An apparatus of the class described, comprising a base, a negative holding plate mounted for rotation thereon, arms supported above the plate and extending radially thereof, carriages mounted on the arms for longitudinal adjustment thereon, threaded rods having threaded connection with the carriages for simultaneously adjusting the same, means for rotating the plate, and means operated by the movement of the plate to simultaneously operate all of said threaded rods.

6. An apparatus of the class described, comprising a base, a negative holding plate mounted for rotation thereon, arms supported above the plate and extending radially thereof, carriages, mounted on the arms for longitudinal movement, threaded rods having threaded connection with the carriages for simultaneously adjusting the same, means for rotating the plate and means operated in the movement of the plate to simultaneously operate all of said threaded rods, a tracer movable with one of said carriages, and a reproducer movable with each of the other of said carriages.

In testimony whereof I aiiixed my signature.

EMILE BUENO. 

